Reversible hydroturbine pump



March-1, 1932. H. E. ADAMS REVERSIBLE HYDROTURBINE PUMP Original FiledApril 16. 1930 3 Sheets-Sheet l I jmxmtom E a/"0&2? 514%778.

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March 1, 1932. H. E. ADAMS REVERSIBLE HYDROTURBINE PUMP Original FiledApril 16, 1930 3 Sheets-Sheet 5 Era/a EMMJ'. bag-I152 M Patented Mar. 1,1932 2 UNI-TED STATESf PATENT oFF e HAROLD E. ADAMS, OF SOUTH NOB-WALK,CONNECTICUT, ASSIGNOR TO NASH ENGINEER- ,nm- COMPANY, or sou'rn NORWALK,

NECTIGUT Original application filed April 1c, 1930, SerialNo. 444,837.Divided and this a ntion filed December I CONNECTICUT, A CORPORATION OFCON- REVERSIBLE HYDROTURBINE PUMP 13, 1930. Serial No.. 02,209.

' bers extending within the opposite side 'portions of the revolvingrotor.

An important object of the invention is to provide a construction in ahydro-turbine pump by which certain of the parts may be readilyre-arranged or reversed in position in such a way as in a differentdirection or to adapt the pump to either a right or a left hand drive.

My invention further relates to arrangementsand combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawings, in whichFig. 1 is a front elevation of one form of my improved pump;

Fig. 2 is a right hand end view thereof;

Fig. 3 is an enlarged sectional front elevation of the pump shown inFig. 1;

Figs. 4, 5 and 6 are sectional end elevations, taken along the lines4-4, 55 and 6-6 in Fig. 3', respectively;

Figs. 4A, 5A and 6A are views similar to Figs. 4, 5 and 6, but showingthe parts differently arranged, and

Fig. 7 is an enlarged detail sectional view to be described.

Referring particularly to Fig. 3, I have,

shown a hydro-turbine pump having a rotor 10 mounted on a shaft 11 androtatable in antifriction bearings 1212. The rotor 10 revolves inacasing 15'having heads 16-16 secured thereto by bolts 17 and held fromdisplacement by dowels 18.

Brackets 20 are secured to the members 16 by bolts 22 and support theball bearings 12. Tapered or conical port members 24 and 25 are mountedin the heads 16 concentric with the axis of the shaft/11. Suitablepacking 27 is provided between the members 24 and to Cit-1186\iill6rotor to revolve 25 and the shaft 11 to prevent the escape of liquidalong these surfaces.

The members 24 and 25 are also provided with accurately finished endflanges '60, closely fitting in circular recesses brackets 20. Theserecesses 61 areaccurately concentric with the ball bearings 12.

The conical port members 24 and 25 are also tightly fitted againstconical bearing surfaces in the heads 16 and are secured therein byclamping bolts 33. the port members 24 and 25 extend into conical centerbearing portions 35 and 36 of the rotor 10 and have a. close running fitrelative thereto.

Suitable inlet and outlet passages are provided in the heads 16, and theport members 24 and 25 are provided with passages and port openingscommunicating with the inlet and outlet passages in the heads and alsocommunicating'with the openings in the bottoms of the pockets in therotor 10. a

With thisconstruction, it will be apparent that the rotor 10, theshaftll, the bearings 12, the brackets 20 and the conical port members24'and 25 form an assemblyof relatively moving parts, all of which maybe easily machined with great accuracy.

When the parts are assembled in the pump casing, the port members 24 and25 will be definitely located in the pump casing, the brackets 20 willbe centered by the port members, the'bearings 12 will be centered by thebrackets 20, and these center the shaft 11 and rotor 10, all of theseparts being accurately concentric with reference to the port members 24and 25.

The rotor may thus be made with very slight running clearance relativeto the inner ends of the port members 24 and 25, a

with my improved construction by merely bearings will in turn.

At their inner ends,

"the heads 16 one half of a revolution relative reversing the shaft 11in the rotor 10 andre assembling the parts.

It is also sometimes desirable to reverse the direction of rotation ofthe rotor in a hydroturbine pump without changing the inlet and ofitletConstructions. This also may be readily accomplished in my improvedconstruction by reversing the rotor 10, and turning to the pump casing15. The rotor 10 may then be driven in the opposite direction and thepump will function perfectly and without change in the inlet or outletconnections, which are indicated at 30 and 31 respectively in Figs. 4 to6A.

Comparing Figs. 4 and 41%., it will be seen that the rotor 10 isreversed but that the casing 15 is not reversed. Also comparing Figs. 5and, 6 with Figs. 5A and 6A, the heads 16 are indicated as being rotated180 in Figs. 5A and 6A, so that they will cooperate with the reversedrotor.

Sealing Water is introduced toprovide an effective seal between the hubportion 35 of the rotor 10 and the ends of the port members 24 and 25.The joints between the rotor portions 36 and the port members 24-. and25 are also eflectively sealed by water from the body of the casing,introduced. through the clearance spaces 52 between the ends of therotor and the inner faces of the heads 16.

I have thus provided a construction in a hydro-turbine pump such thatthe partslmay be readily cast, machined and assembled and such that thealignment may be easily and accurately maintained.

I have further provided a construction in which the same parts may bere-arranged to provide a pump rotating in the opposite direction withrespect to the inlet and outlet connections, and I have provided a pumpin which the drive may be readily laced at either the right or left handend of t e pump. J Having thus described my invention and the advantagesthereof, I do not wish to be limited to the details herein disclosed,otherwise than as set forth in the claims, but what I claim is f 1. In ahydro-turbine pump, a rotor having pockets with port openings therein, acasing enclosing said rotor, and heads for said casing, each head havinginlet and outlet ports cooperating with said rotorport openings andbeing so constructed that it may be secured in either of twodiametrically opposite angular relations to said casing, whereby saidpump may be-caused to receive and discharge air in either of twodirections while neeaeee and having passages therein connected to saidports and so disposed that the head may be secured in either of twodiametrically opposite angular relations to said casing, whereby saidpump may be caused to receive and discharge air in either of twodirections while the direction of rotation of the 'rotor remainsunchanged.

3. The combination in a hydro-turbine pump as set forth in claim 2, inwhich the ports in the casing are formed in separate port membersmounted in said heads and interchangeable between said heads when thedirection of rotation of the rotor is to be reversed.

4.. In a hydro-turbine pump, a rotor having pockets with port openingstherein, a casing enclosing said' rotor, heads for said casing, and portmembers mounted in said heads and having inlet and outlet portscooperating with said rotor port openings, each head having a passagecommunicating with an inlet port in its associated port memberand'having another passage communicating with an outlet port in saidmember when said head and port member are assembled in a predeterminedrelation.

5. The combination in a hydro-turbine respect to itsassociated head, andin which each port in said member communicates with a different passagein the head in each different assembly position.

In testimony whereof I have hereunto affixed my signature.

HAROLD n. ADAMS.

the direction of rotation of the rotor remains ing, each head havinginlet and outlet ports cooperating .wi th said rotor port openings

